Does anyone own a DBS Altitude Amex card and can help to purchase a Cathay Pacific promo air tix to HKG at SGD 399 ??

I'm going there in March, and would like to take a regular airline than to sit 4 hours in a budget airline.. the CX promo is really good, but i dont earn that much to own this card... if anyone can help, pls let me know! much appreciated!